Math Fact Fluency

 I am looking for a way to help the children become for fluent with their math facts.  We tried a new website today called 99math.  The children log in to the game with a game code.  Each looks at his/her device and answers the math facts for 3 minutes.  At the end of the 3 minutes, it gives them an individual score.  I had them write down their score on a post it note to put in their school folder.  I told them the next time I want them to try to beat their score.  They seemed really excited!